Indoor Air Quality

A whole-house air cleaner or a higher-MERV filter captures fine particles as air passes through the system. Media air cleaners and electronic models catch far more than a basic 1-inch filter, without restricting airflow the way a too-dense filter can.

Air conditioning removes some humidity while cooling, but in very humid climates — or during mild, damp weather when the AC runs little — a dedicated whole-house dehumidifier keeps indoor humidity in the comfortable 40–50% range.

An ERV brings fresh outdoor air into a tightly sealed home while transferring heat and moisture between the incoming and outgoing air streams, so you get ventilation without throwing away the energy you've spent heating or cooling.

It depends on the filter. A 1-inch filter typically needs changing every 1–3 months; thicker media filters can last 6–12 months. Pets, allergies, and heavy use shorten the interval.

A filter that's too dense for your equipment can restrict airflow and strain the blower. Higher-MERV media filters in a properly sized cabinet clean better without that penalty — matching the filter to the system is what matters.